**10. Comparisons of stenting versus endarterectomy**

Markus et al studied the effect of carotid PTA compared to CEA on cerebral hemodynamics of symptomatic stenoses as reflected by CO2 reactivity. After PTA there was a significant improvement in ipsilateral hypercapnic reactivity. There was a similar improvement in ipsilateral hypercapnic reactivity after CEA.[10]

Golledge et al performed a systematic comparison of the 30-day outcome of angioplasty with or without stenting and CEA for symptomatic carotid disease reported in single-center studies, published between 1990 and 1999. All the results were in favor of CEA. Mortality within 30 days of angioplasty was 0.8% compared with 1.2% after CEA (P=0.6). The stroke rate was 7.1% for angioplasty and 3.3% for CEA (P<0.001).[11]
